I had blue polish on my toenails for a few weeks and decided to change them. I hadn't left them that long before. To my surprise my toenails had turned chalky white under the polish, and I could scrape off the top surface of the nail! Scared the poop out of me! A girl friend of mine said not to worry, it happens to her sometimes. Turned out to be keratin granulations, which is caused by leaving the polish on too long and from my new all leather Converse all stars. The combination prevented the nails from getting enough air! Whew! 🙂 so they are naked at the moment, which makes me sad. 🙁